package main
import "encoding/json"
type ObjectConstraint interface {
	Object | Object2
	Method()
}

func DoSomething[ObjectWithConstraint ObjectConstraint]() ObjectWithConstraint {
	objectJson := "{\"content\":\"This Would Cause Compiling Error\" +}"
	var object ObjectWithConstraint
	json.Unmarshal([]byte(objectJson), object)
	return object
}

type Object struct {
	content string
}

// Just for compiling,irrelevant
func (Object) Method() {}

//  Caused Compiling Error: cannot infer ObjectWithConstraint 
func DoSomething_Wrapped() Object {
	return DoSomething()
}

type Object2 struct {
	content string
}

// Just for compiling,irrelevant
func (Object2) Method() {}

// Same stuff with type Object2
func DoSomething_Wrapped() Object2 {
	return DoSomething()
}

func main() {
	object := DoSomething()
	object.Method()
}

func DoSomething[ObjectWithConstraint ObjectConstraint](dummyObject ObjectWithConstraint) ObjectWithConstraint{
// dummy Object unused....
}

func DoSomething_Wrapped() Object {
	dummy := Object{content: ""}
	return DoSomething( dummy )
}

// main
func main() {
	dummyObject := Object{content: ""}
	object := DoSomething(dummyObject)
	object.Method()
}